2026 How to Become a Teacher in Iowa – What Degree Do You Need to Be a Teacher?

by Imed Bouchrika, PhD

Co-Founder and Chief Data Scientist

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Becoming a teacher in Iowa means making several connected decisions: which grade level or subject to teach, which educator preparation program to choose, how to qualify for Iowa licensure, and whether an online or campus-based route fits your timeline and budget. Iowa’s public school system reported an 88.3% graduation rate for the class of 2024 in 2025, and the state’s schools were supported by 38,022 educators, making the teacher pipeline an important part of the state’s education strategy.

This guide explains how to become a teacher in Iowa in 2026, including education requirements, Iowa Board of Educational Examiners licensure steps, background checks, renewal rules, online teacher preparation options, specializations, financial aid, and top education programs in the state. It is designed for first-time college students, career changers, substitute teachers, online learners, and current educators considering advancement.

How to Become a Teacher in Iowa Table of Contents

1. Iowa teaching career overview
2. Education requirements for Iowa teachers
3. Iowa teacher license application and renewal steps
4. Teaching pathways available in Iowa
5. Teaching specializations to consider in Iowa
6. Financial aid options for future Iowa teachers
7. Should Iowa teachers pursue an online doctorate in education?
8. Why an online teaching degree may make sense
9. Career advancement options for Iowa educators
10. School librarian career prospects in Iowa
11. Steps to become a kindergarten teacher in Iowa
12. Private school teacher requirements in Iowa
13. Online teacher certification in Iowa
14. What is changing in Iowa teacher certification?
15. Substitute teaching requirements in Iowa
16. Easiest education degree options in Iowa
17. Top education programs in Iowa for 2026
18. Special education teacher certification in Iowa
19. Specialized subject teaching prospects in Iowa

Quick Answer: How do you become a teacher in Iowa?

To become a public school teacher in Iowa, you generally need a bachelor’s degree from an accredited institution, completion of a state-approved teacher preparation program, a recommendation for licensure, required background checks, and approval from the Iowa Board of Educational Examiners. Your license must match the grade level and subject area you plan to teach. Career changers may be able to use an alternative route such as a teacher intern program if they already hold a bachelor’s degree and meet additional requirements.

Overview of the Education Industry in Iowa

Iowa’s education system is shaped by state-level accountability, local district needs, and a continuing focus on educator quality. The state’s Department of Education uses a Model Educator Evaluation System, which reflects Iowa’s view that effective instruction is central to student outcomes. For readers comparing teaching with other public-service careers, it can help to start with a broader understanding of why education matters to communities, families, and the workforce.

New educators in Iowa are not expected to succeed without support. The Iowa Mentoring and Induction program, part of Teacher Quality efforts, gives beginning teachers structured guidance during the transition from preparation program to classroom practice. That support is especially important because early-career teachers must learn lesson planning, classroom management, assessment, family communication, and district procedures at the same time.

Iowa also faces challenges that future educators should understand before entering the field. A recent study reported that teachers of color make up only 2.8% of Iowa’s teacher workforce, compared with a 27% student of color population. That gap matters because schools increasingly need educators who can build inclusive classrooms, support students from varied backgrounds, and apply culturally responsive instructional practices.

Teacher preparation in Iowa also includes the academic foundation needed to serve all learners. Candidates should expect coursework in pedagogy, assessment, child and adolescent development, classroom management, ethics, and general education foundations, along with supervised field experiences.

Pay varies substantially by role, grade level, institution type, and subject area. Postsecondary teaching roles in law, engineering, economics, and health specialties appear near the top of the Iowa wage table, while preschool teaching, substitute teaching, and teaching assistant roles report lower annual mean wages. The following wage table uses Iowa occupational wage categories and should be read as a labor-market snapshot rather than a guaranteed salary for any individual teacher.

Educational Requirements for Teachers in Iowa

The standard route to Iowa teacher licensure begins with college-level preparation and ends with a license recommendation. The key is not simply earning an education degree; the program must prepare you for the endorsement and grade level you want to teach.

• Earn a bachelor’s degree from an accredited institution. Most public school teaching paths require a bachelor’s degree. Your major should align with your teaching goal whenever possible. A future high school English teacher may major in English or English education, while a future early childhood educator may compare options such as an online early childhood education bachelor’s program. At the moment, there are 64% of teachers with a bachelor’s degree.
• Complete a state-approved teacher preparation program. Iowa candidates must complete an educator preparation program recognized for Iowa licensure. These programs combine education coursework, field placements, and supervised teaching experience so candidates can demonstrate instructional readiness in real classrooms.
• Choose the right endorsement area. Your endorsement determines the subjects and grade levels you may teach. Elementary education, secondary English, special education, early childhood, career and technical education, and K-12 areas can have different coursework and field experience requirements.
• Consider graduate study only when it fits your goals. Advanced degrees such as online master’s degrees in education are not always required for initial Iowa licensure, but they may help teachers specialize, prepare for leadership, or qualify for roles that require deeper expertise.

Iowa Licensure Application and Renewal Process For Teachers

After completing the educational and program requirements for your chosen teaching area, you can begin the Iowa licensure application process. The Iowa Board of Educational Examiners reviews applications, documentation, and background check results before issuing a license.

1. Create your BOEE account. Start by setting up an online account through the Iowa Board of Educational Examiners so you can access the licensure application system.
2. Choose the correct license type. Select the license that matches your situation. Iowa currently offers a Standard License, Master License, or Professional Service License (PSL), and each category has its own requirements.
3. Complete the application accurately. Enter your education history, preparation program details, experience, and background information carefully. Errors can delay review.
4. Upload required documents. Submit transcripts, certificates, background check materials, and any other required records in a clear, readable format.
5. Pay the required fees. Application fees vary by license type and are paid through accepted payment methods such as credit card.
6. Submit the application for review. Review every section before submitting because applicants are responsible for understanding the applicable Iowa teaching laws and rules.
7. Track your application status. Check your online account regularly. The application is only submitted for review by the Board of Educational Examiners when the status is ‘Pending Internal Review,’ and the processing time may take up to six weeks.
8. Receive your license if approved. Once approved, you will receive your Iowa teaching license for the authorized grade levels and endorsements.

Once payment is submitted, there is no refund. The license is valid for a term of two years and authorizes full teaching instruction within specified grade levels and endorsements, along with substitute authority, including long-term subbing. Iowa’s teacher-to-student ratio has improved to 14.15 from 14.45, a useful labor-market context point for candidates watching staffing trends.

Application Background Checks

The Iowa Board of Educational Examiners reviews renewal and conversion applications and uses resources such as Iowa Courts Online, the Child Abuse Registry, and the Sex Offender Registry. First-time applicants complete federal background checks through Fieldprint, which includes fingerprinting at Iowa locations or use of a card packet for applicants outside the state.

The federal background check and fingerprinting cost is $34.35, paid directly to Fieldprint. Applicants also pay a $35.00 background check fee to the Board of Educational Examiners. Fieldprint is intended to make fingerprinting faster and less expensive for individuals, with results expected in approximately one week. Paper fingerprint cards remain available with a $75.00 fee.

License Renewal

Renewals are available for two terms. For the second renewal, teachers must show proof of employment in a contracted position that leads to a standard license. Extensions may be granted for applicants who are expected to meet the experience requirement within a year or who need one final year to meet the Iowa teaching standard.

Understanding the Different Teaching Pathways in Iowa

Iowa has more than one route into teaching because candidates arrive with different backgrounds. A high school senior, a paraeducator, a substitute teacher, a working professional with a bachelor’s degree, and a licensed teacher adding an endorsement may all need different steps.

The traditional path combines college coursework with supervised field experience through a state-approved educator preparation program. This route is usually the most straightforward option for students who know early that they want to teach in Iowa public schools. Career changers may look at alternative certification options, including the Teacher Intern Program at Morningside University, which can help qualified bachelor’s degree holders move toward licensure in high-demand areas within a shortened timeline.

Endorsements also matter. They define what you can teach, so candidates should not choose a program based only on convenience or cost. A program that fits one endorsement area may not prepare you for another. For a deeper comparison of available credentials, see this guide to the types of teaching certificates in Iowa.

What other specializations can aspiring teachers in Iowa consider?

Iowa teaching candidates should choose a specialization based on student age group, subject interest, local hiring needs, and long-term career goals. Elementary education can be a strong option for candidates who want to teach multiple subjects and build foundational skills with younger learners. If that path fits your goals, review the requirements for becoming an elementary school teacher in Iowa.

Other common specialization choices include early childhood education, secondary subject teaching, special education, school library services, career and technical education, and K-12 areas such as art or music. The best choice is the one that matches both your strengths and the endorsement you are willing to complete.

What financial aid options are available for prospective teachers in Iowa?

Teacher preparation can involve tuition, fees, books, technology, background checks, transportation to field placements, and lost work hours during student teaching. Prospective Iowa teachers should compare total cost, not just advertised tuition. Financial aid may come from federal, state, institutional, and profession-specific sources.

• Iowa Teacher Loan Forgiveness Program: This state-specific option provides partial loan forgiveness for educators who work in high-need areas in Iowa, including rural or low-income schools. It can help reduce debt for teachers committed to serving those communities.
• TEACH Grants: The federal Teacher Education Assistance for College and Higher Education program provides up to $4,000 annually to eligible students who agree to teach in high-need fields or underserved schools for at least four years after graduation.
• Iowa Tuition Grant: This grant is available to students attending private colleges and universities in Iowa and can provide up to $7,500 per year. It is not limited to education majors, but it may help qualified future teachers lower their net cost.
• University-specific scholarships: Institutions such as the University of Iowa and Iowa State University may offer scholarships for education students based on merit, financial need, intended teaching field, or commitment to high-demand areas.

Should I Pursue an Online Doctoral Degree in Education for Career Advancement?

An online doctoral degree in education may be worth considering if your goal is leadership, higher education, district-level administration, research, policy, curriculum design, or advanced instructional expertise. It is usually not necessary for initial Iowa teacher licensure, so candidates should not pursue a doctorate simply to enter the classroom.

The strongest reason to consider a doctorate is role alignment. If the positions you want require advanced research, organizational leadership, or senior-level education credentials, an online format can make doctoral study more manageable while you continue working. Cost is still a major factor, so compare accredited options carefully and review the cheapest online doctoral programs in education before committing.

Why choose an online teaching degree?

An online teaching degree can be a practical route for Iowa candidates who need flexibility because of work, caregiving, military service, geography, or transportation limits. Online coursework can reduce commuting and housing costs, but students must still complete required field experiences and student teaching in approved settings.

The most important question is not whether a program is online. It is whether the program is accredited, approved for the licensure outcome you need, and able to place you in Iowa-compliant field experiences. A useful starting point is this guide to online bachelor of education programs.

• Flexibility: Online programs may offer asynchronous coursework or evening-friendly schedules for students with work and family responsibilities.
• Access: Rural students or candidates far from a campus may be able to complete coursework without relocating.
• Potential savings: Online study can reduce commuting, housing, and campus-based expenses, though fees and clinical requirements still apply.
• Licensure caution: Not every online education program is designed for Iowa licensure, so always verify approval before enrolling.

What career advancement opportunities are available for Iowa teachers?

Iowa educators can move beyond an initial classroom assignment in several ways. Some advance by adding endorsements, mentoring new teachers, leading grade-level teams, becoming department chairs, specializing in curriculum, or moving into administrative roles. Others pursue graduate credentials to prepare for instructional coaching, school leadership, higher education, or policy work.

Returning to school can be useful when it has a clear purpose. Teachers considering a new credential should compare the cost, time commitment, endorsement value, and likely career benefit. This is especially important for adults going back to school for a teaching degree while working.

What are the prospects for a career as a school librarian in Iowa?

School librarians support reading development, research skills, digital literacy, and responsible information use. In modern schools, the role often combines library management, technology integration, collaboration with classroom teachers, and student instruction. Candidates interested in this path should confirm the educational and certification expectations for Iowa districts before selecting a graduate or endorsement program.

Many school librarian roles require specialized preparation, and some may expect a master’s degree in library and information science or an education background with relevant certification. For state-specific details, review this guide on how to become a school librarian in Iowa.

What are the specific steps to become a kindergarten teacher in Iowa?

Kindergarten teachers need preparation in early childhood development, literacy foundations, numeracy, classroom routines, family communication, observation-based assessment, and developmentally appropriate instruction. In Iowa, candidates must complete the academic and field experience requirements tied to the relevant endorsement and licensure pathway.

Because kindergarten sits at a critical transition point between early learning and elementary school, candidates should choose programs with strong supervised experience in young-child classrooms. For a focused breakdown, see the kindergarten teacher requirements in Iowa.

What are the private school teacher requirements in Iowa?

Private schools in Iowa may use hiring standards that differ from public school licensure requirements. Some private schools may prioritize subject expertise, faith-based mission fit, teaching experience, or a completed teacher preparation program. Others may strongly prefer or require state licensure, especially for roles connected to special services or accreditation expectations.

Applicants should not assume that one private school’s requirements apply to all private schools. Review each job posting and ask whether Iowa licensure, endorsements, background checks, and continuing education are required. For more detail, see this guide to private school teacher requirements in Iowa.

Is online teacher certification a viable option in Iowa?

Online teacher certification can be viable in Iowa when the program is designed to satisfy Iowa licensure standards and includes approved field experiences. Coursework may be delivered online, but practical teaching requirements still matter. Candidates should be wary of programs that advertise speed or convenience without clearly explaining Iowa approval, endorsements, and clinical placement support.

Before enrolling, ask whether the program can recommend graduates to the Iowa Board of Educational Examiners, whether field placements can be completed near your location, and whether the endorsement matches your career goal. For a step-by-step look at this route, read how to become a teacher online in Iowa.

What factors are driving changes in teacher certification standards in Iowa?

Teacher certification standards evolve as schools respond to staffing needs, student support demands, technology use, assessment expectations, and changing instructional practices. Iowa candidates should monitor updates because changes can affect required coursework, endorsements, background checks, alternative pathways, and professional development expectations.

The safest strategy is to rely on current BOEE guidance and confirm requirements directly with your preparation program. For a broader explanation of credential categories and requirements, review this guide to teacher certification requirements in Iowa.

What are the requirements for substitute teaching in Iowa?

Substitute teaching has a separate authorization process from full-time teacher licensure. Iowa substitute candidates must meet state-specific education requirements, complete required fingerprinting and background screening, and understand classroom management, emergency procedures, and district expectations.

Substitute teaching can also help future educators test whether they enjoy working with certain age groups before committing to a full teacher preparation program. For the complete process, review the Iowa substitute teacher requirements.

What is the easiest education degree to pursue in Iowa?

No education degree is truly “easy” if it prepares you to work responsibly with students. However, some programs may be more accessible depending on your academic background, schedule, and career goal. An associate degree in early childhood education or a general studies program with an education emphasis may be a manageable starting point, but those options typically do not replace the bachelor’s degree and approved teacher preparation required for full public school licensure.

For students seeking flexibility, online study can make an education degree easier to schedule, especially when courses are asynchronous. Affordability also matters. If cost is a major barrier, compare options such as the most affordable online elementary education programs, but confirm whether the program supports Iowa licensure before enrolling.

List of Top Education Programs in Iowa for 2026

Research.com reviewed reliable public data to identify top education programs in Iowa for 2026. The evaluation considered available Iowa teaching certificate options, academic ratings, enrollment rate, affordability, acceptance rate, and other relevant school-level factors. Rankings can be useful, but they should not be the only basis for your decision. The best program for you is the one that matches your endorsement goal, budget, schedule, placement needs, and licensure plan.

1. The University of Iowa

The University of Iowa College of Education offers programs in Counseling and Mental Health, Education and Teaching, Higher Education and Leadership, Learning Sciences and Assessment, and Society and Human Relations. Its Teacher Education Program supports elementary and secondary education candidates pursuing initial licensure through a blend of academic coursework, professional expectations, and field experiences.

• Program Length: At least two years
• Tracks/concentrations: Educational Psychology and MeasurementHuman Relations for the Classroom TeacherTeaching and Learning Technologies
• Educational Psychology and Measurement
• Human Relations for the Classroom Teacher
• Teaching and Learning Technologies
• Cost per year: $23,580 (resident), $45,543 (non-resident)
• Required credits to graduate: 30 semester hours
• Accreditation: Higher Learning Commission (HLC)

2. Iowa State University

Iowa State University offers an Educator Preparation Program that prepares students for licensure recommendation to the Iowa Board of Educational Examiners. The program covers multiple age ranges and leadership paths, including birth to 3rd grade, kindergarten to 6th grade, 5th to 12th grade, kindergarten to 12th grade, principal leadership, and superintendent leadership. Candidates can pursue areas such as early childhood education, elementary education, secondary education, and M.A.T. options.

• Program Length: Four years
• Tracks/concentrations: Agricultural Education Agriculture and Life SciencesBiology Education Liberal Arts and SciencesChemistry Education Liberal Arts and Sciences
• Agricultural Education Agriculture and Life Sciences
• Biology Education Liberal Arts and Sciences
• Chemistry Education Liberal Arts and Sciences
• Cost per year: $24,204 (resident), $41,390 (non-resident)
• Required credits to graduate: 128 credits
• Accreditation: HLC

3. University of Northern Iowa

University of Northern Iowa College of Education offers preparation in early childhood, elementary, and middle-level education. The college is described as having the largest teacher education program in Iowa and emphasizes hands-on learning. Its Early Childhood Education Major prepares graduates to teach both regular and special education in early childhood settings, including work with students from varied backgrounds and ability levels.

• Program Length: Four years
• Tracks/concentrations: Early childhood education teachingElementary education teachingLiteracy education teaching
• Early childhood education teaching
• Elementary education teaching
• Literacy education teaching
• Cost per credit: $19,376 (resident), $30,920 (non-resident)
• Required credits to graduate: 120 credit hours
• Accreditation: HLC

4. Upper Iowa University

Upper Iowa University offers a Teacher Education program with over 15 majors and multiple endorsement options. The program emphasizes hands-on preparation, partnerships with community colleges and PreK-12 schools, study abroad opportunities, and faculty with classroom teaching experience.

• Program Length: Four years
• Tracks/concentrations: Elementary EducationBirth Grade 3: Inclusive SettingsK-12 Art
• Elementary Education
• Birth Grade 3: Inclusive Settings
• K-12 Art
• Cost per year: $34,022
• Required credits to graduate: 120 credits
• Accreditation: State of Iowa Board of Education

5. Morningside University

Morningside University offers a Teacher Intern Program for candidates who already hold a bachelor’s degree and want to become licensed teachers in Iowa in less than two years. The hybrid program combines online classes with face-to-face sessions and is designed for high-demand areas such as biology, English, and family and consumer science. Admission requirements include a bachelor’s degree from a regionally accredited institution, preference for degrees in shortage teaching areas within Iowa, a minimum GPA of 2.75, and three years of post-bachelor’s work experience.

• Program Length: Less than two years
• Tracks/concentrations: Principles of EducationInclusive EnvironmentsFoundations of Clinical Practice
• Principles of Education
• Inclusive Environments
• Foundations of Clinical Practice
• Cost per credit: $635
• Required courses to graduate: 14 courses
• Accreditation: HLC

What are the prospects for specialized subject teaching in Iowa?

Specialized subject teaching can be a strong path for candidates with deep content knowledge and a clear instructional focus. Iowa schools need teachers who can translate subject expertise into age-appropriate lessons, assessments, and student supports. Subject-area teachers should pay close attention to endorsement requirements because a degree in the subject does not always equal teaching authorization.

English, science, math, career and technical education, and special education are examples of areas where targeted preparation can shape hiring prospects and long-term advancement. Candidates interested in language arts can start with this guide on how to become an English teacher in Iowa.

How can I obtain special education teacher certification in Iowa?

Special education teacher certification in Iowa requires preparation beyond general classroom teaching. Candidates need coursework and field experiences focused on disability categories, individualized instruction, behavior supports, assessment, legal and ethical responsibilities, collaboration with families, and inclusive classroom practices.

Because special education teachers often work with individualized education plans and multidisciplinary teams, candidates should choose programs with strong supervised practice and clear alignment with Iowa endorsement requirements. For a detailed pathway, review special education teacher certification in Iowa.

Pursue a Teaching Career in Iowa

Teaching in Iowa can be demanding, but it offers a structured path for people who want to support student learning and contribute to their communities. The most successful candidates usually make careful decisions early: they choose an approved program, verify endorsement requirements, understand background checks, plan for student teaching, and compare total program cost before enrolling.

If you are still comparing degree formats, consider whether a campus program, hybrid route, or online bachelor’s degree in teaching best fits your schedule and licensure needs. The right path is not necessarily the fastest one. It is the one that prepares you for the Iowa classroom you actually want to enter.

FAQ

1. What are the educational requirements to become a teacher in Iowa?

Iowa public school teachers generally need a bachelor’s degree from an accredited institution and completion of a state-approved teacher preparation program. The program must align with the grade level and subject endorsement the candidate wants to teach.

2. What is the Iowa Mentoring and Induction program?

The Iowa Mentoring and Induction program supports new teachers through guided professional mentorship. Its purpose is to help beginning educators adjust to classroom responsibilities, improve instructional practice, and remain in the profession.

3. How do I apply for a teaching license in Iowa?

You apply through the Iowa Board of Educational Examiners online system. The process includes creating an account, choosing the correct license type, completing application forms, uploading documents, paying fees, submitting background check materials, and monitoring the application status.

4. What is the process for renewing a teaching license in Iowa?

Renewals are available for two terms. The second renewal requires proof of employment in a contracted position leading to a standard license. Some applicants may qualify for an extension if they are close to meeting the experience requirement or need one final year to meet the Iowa teaching standard.

5. How much do teachers in Iowa earn?

Teacher pay in Iowa depends on role, grade level, institution type, subject area, district salary schedule, and experience. In the wage table above, postsecondary law teachers report an annual mean wage of $138,710, while teaching assistants, except postsecondary, report $28,460.

6. What professional development support is available in Iowa?

Iowa supports educator development through mentoring, district-based training, collaboration among teachers, and continuing education connected to licensure and school improvement needs.

7. Are background checks required for Iowa teacher licensure?

Yes. The Iowa Board of Educational Examiners uses checks that may include Iowa Courts Online, the Child Abuse Registry, the Sex Offender Registry, and federal fingerprinting through Fieldprint for first-time applicants.

8. What are some top education programs in Iowa?

Programs highlighted in this guide include The University of Iowa, Iowa State University, University of Northern Iowa, Upper Iowa University, and Morningside University. Candidates should compare each program’s licensure alignment, cost, format, endorsements, and field placement support.

9. Does Iowa have a teacher diversity gap?

Yes. A recent study reported that only 2.8% of Iowa teachers are teachers of color, compared with a 27% student of color population. This makes inclusive preparation and recruitment an important issue for Iowa schools.

10. What support is available for new teachers in Iowa?

New teachers can receive structured help through the Iowa Mentoring and Induction program, school-based mentoring, professional development, and collaboration with experienced educators. Candidates should ask potential districts how mentoring is organized during the first years of teaching.

Key Insights

• Iowa licensure starts with the right preparation program. A bachelor’s degree is important, but candidates also need a state-approved teacher preparation program aligned with their intended endorsement.
• Endorsements drive employability. Your license must match the grade levels and subjects you want to teach, so choose your program around your target classroom role.
• Online programs can work, but approval matters. Flexibility is valuable, but Iowa candidates must verify licensure alignment, field placement support, and accreditation before enrolling.
• Background checks are part of the process. First-time applicants should plan for Fieldprint fingerprinting, BOEE background check fees, and state registry reviews.
• Cost comparisons should go beyond tuition. Include fees, transfer credit policies, clinical placement expenses, commuting, lost work time, and financial aid conditions.
• Teacher pay varies widely by role. Iowa wage data show large differences between postsecondary, K-12, preschool, substitute, and assistant roles.
• Iowa needs inclusive, well-prepared educators. The state’s teacher diversity gap and student support needs make culturally responsive, evidence-based teaching skills especially important.

References

• Iowa Department of Education (n.d.). About the Iowa education system. https://educateiowa.gov/about-iowa-education-system
• Iowa Department of Education (2025, March 31). Iowa’s high school graduation rate climbs to 88.3% for the class of 2024. https://educate.iowa.gov/press-release/2025-03-31/iowas-high-school-graduation-rate-climbs-883-class-2024
• Merod, A. (2024, November 4). Majority of states see decrease in student-teacher ratios post-COVID. K-12 Dive. https://www.k12dive.com/news/student-teacher-ratios-states-covid-staffed-up/731651/
• National Center for Education Statistics (n.d.). Digest State Dashboard Iowa. https://nces.ed.gov/programs/digest-dashboard/state/iowa
• US BLS. (2024). Occupational Employment and Wage Statistics. Area: Iowa. https://data.bls.gov/oes/#/area/1900000
• Zippia. (2025). Best Colleges and Degrees For Teachers Zippia. https://www.zippia.com/teacher-jobs/education